Caster-wheel for hoisting-buckets



(No ModeL) A. E. BROWN.

OASTER WHEEL FOR HOISTING BUGKETS.

Patented'Ap-r; 7, 1885.

INVENTOR- UNITED STATES PATENT QFFICEO ALEXANDER E. BROWN, OF CLEVELAND, OH IO C ASTER-WH EEL FO R HOlSTlNG-BUCK ETS.

SPECIFICATION forming part of Letters Patent No. 315,235, dated April 7, 1885.

Application filed February 25, 1885. No modeLl .To all whom it may concern.-

Be it known that I, ALEXANDER E. BROWN, of Cleveland, in the county of Ouyahoga and State of Ohio, have invented certain new and useful Improvements in Caster Wheels for Hoisting- Buckets; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this application.

My invention relates to certain new and useful improvements in castenwheels for use in connection with the buckets usually employed in hoisting and conveying machines, for handling coal, ore, &c. and it consists in a hollow caster-wheel provided with an internal circumferential strengthening rib or ribs, and also in a hollow cast-metal caster-wheel in which the holes required for the extrication of the core used in casting the wheel are securely closed up by plugs for the purpose of preventing the entrance into the interior of such wheel of the fine coal or other material into the masses of which the wheels have frequently to be placed.

To enable those skilled in the art to which my invention relates to make and use the caster-wheels involving my improvements, I will now proceed to more fully describe the latter, referring by letters to the accompanying drawings,which form part of this specification, and in which- Figure l is a side view or elevation of a hoisting-bucket containing, in addition to the invention made the subject of this application, various improvements which form the subjectsmatter of other applications filed by me, and of which thiscase is a division. Fig. 2 is a front elevation of the same. Fig. 3 is a side view of one of the caster-wheels of the bucket made on anrenlarged scale. Fig. 4 is a cross-section taken at the line as x of Fig. 3.

In the several views the same part will be found designated by the same letter of reference.

The bucket is composed as usual of plateriveted, as shown, to thesheet nietaliupward at 0 throughout that portion which comes edge of the bucket, while near the f middle portion of the side A of the bucket are ar ranged parallel to each other two substantially vertical angle-iron bars or ribs, ff, which are in like manner securely riveted in place. Between these stiffening irons or bars ff, on

each side of the bucket, is pivotally attached at at one of the ends of the handle or bail C of the bucket. This bail is provided, as usual,

at its upper portion with an upwardly-projecting rim or hook-eye, D, (to engage with the hook of an ordinary hoisting and conveying machine,) and has combined with it the usual or most approved devices or appliances for effecting in a manner well known the look ing and unlocking of the bucket to the bail.

G is the usual handle at the rear portion of the bucket for conveniently swinging the latter as it may be handled by the operative in descending into a mine, vessel, or other place.

j j are the usual stops or lugs, against which the forward portion of the handle 0 bears on each side of the bucket, when thelatter and the bail are locked together, whileat'iis shown the stop-lu gs, which come to a bearing against the rear side of the bail or handle G when the bucket is tipped to discharge its load or contents.

b b are two casters or wheels, which are mounted so as to have their axles!) turn freely with-in bearings or boxes formed in malleable iron housings k, that are partially let into, and

that are securely riveted to, the bottom plate,

B, of the bucket 'near eitherside of the latter and in about the localities relative to thelowermost part of the bucket-bottom shown in the drawings, while a is a rear caster-wheel turning upon a stud or axle, a mounted in a p wrought-iron standard, a securely riveted to the plate B of the bucket about midway of the width of the latter and some'distance in the rear of the lowest portion of the bucket-bottom. On the said plate B, nearly or about midway (lengthwise of said plate) between the locality of the wheels b b and the upper front edge of the bucket, is mounted to turn freely in a metallic stand or bracket, 0 riveted to the plate B, a small roller or caster-wheel, c.

I/Vhen the fact is taken into consideration (which is well known to those skilled in the art) that these hoisting and conveying buckets usually weigh about eight hundred pounds for a bucket capable of containing one ton of soft coal, the practical importance of every feature of construction by which the entire contrivance may be both lightened, and at the same time rendered strong, durable, rigid, and capable of withstanding the wear and tear to which it must necessarily be subjected, will be readily understood and appreciated.

In making the caster-wheels of these hoisting buckets I give them great combined strength and lightness by casting them hollow, and with one or more internal circumferential ribs, 3 (see Fig. 4,) and to prevent the entrance of small or fine material through the usual apertures necessarily left in one side of the wheel for the extrication of the core, I close up such apertures by plugs or bars 0, which are preferably held securely in place by means of tie rods or bolts Z, which pass through the wheel from side to side, and are riveted in place, all as clearly shown at Figs. 3 and 4.

All matter herein shown and described but not claimed, and claimed in applications filed by me January 2, 1885, and February 3, 1885, bearing, respectively, Serial Nos. 151,783 and 154,839, is hereby disclaimed in favor of said other applications.

What I claim as new, and desire to secure by Letters Patent, is

1. A hollow caster-wheel for hoisting-buckets, provided with an interior circumferential strengthening rib or ribs, substantially as set forth.

2. A hollow castmetal caster-wheel for I ALEXANDER In presence of E. T. SoovILL, CHAS. W. KELLY. 

